The Effect of Problem Based Learning on Students’ Mathematical Problem Solving Skills

Moh Andra Ramadhan I. H. Mude; Syamsu Qamar Badu; Auli Irfah

doi:10.22460/jiml.v8i3.28798

Authors

Moh Andra Ramadhan I. H. Mude Universitas Negeri Gorontalo, Gorontalo, Indonesia
Syamsu Qamar Badu Universitas Negeri Gorontalo, Gorontalo, Indonesia
Auli Irfah Universitas Negeri Gorontalo, Gorontalo, Indonesia

DOI:

https://doi.org/10.22460/jiml.v8i3.28798

Keywords:

Mathematical Problem-Solving Skills, Problem Based Learning , Junior High School

Abstract

This study was motivated by the low mathematical problem-solving skills of students at SMP Negeri 2 Suwawa, which is believed to be caused by the use of the Direct Instruction model that has not effectively supported the development of such skills. This study aimed to examine the effect of implementing the Problem-Based Learning (PBL) model on students’ mathematical problem-solving abilities, particularly on the topic of Systems of Linear Equations in Two Variables (SPLDV). The research employed a quasi-experimental method with a pretest-posttest design with a nonequivalent group. The participants were students of classes VIII-3 and VIII-4 at SMP Negeri 2 Suwawa, selected through cluster random sampling. The instrument used was a test measuring mathematical problem-solving skills based on SPLDV material. The hypothesis was tested using the t-test, which yielded a result of tₕ = 3.767 > tₜ = 2.024, indicating that students taught using the PBL model had significantly higher average problem-solving abilities than those taught using the Direct Instruction model. Additionally, the effect size calculated with Cohen’s d was 1.191, categorized as a high effect. These results suggest that the implementation of Problem-Based Learning significantly enhances students' mathematical problem-solving skills and can serve as an effective alternative to traditional instructional models in mathematics learning.

Author Biographies

Syamsu Qamar Badu, Universitas Negeri Gorontalo, Gorontalo, Indonesia

Jurusan Matematika Fakultas Matematika dan Ilmu Pengetahuan Alam, Dosen

Auli Irfah, Universitas Negeri Gorontalo, Gorontalo, Indonesia

Jurusan Matematika Fakultas Matematika dan Ilmu Pengetahuan Alam, Dosen

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